Install Attic Vents

An attic with 1 500 square feet x 7 1 050 cfm make sure you also have adequate air intake typically through the undereave vents.

Install attic vents.

Multiply this number by 7 to give you the minimum cfm required for your ventilator. Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings. Cutting the rafters could weaken the structure of the roof. For a gable vent you start by removing the siding and sheathing in your determined area with a circular saw avoiding any unnecessary contact to the gable studs after creating a space for the vent line the hole with caulk and place the vent inside.

How to install gable vents in an attic. Soffit vents come in several sizes and styles including small round discs and rectangular grilles. Adding attic vents is a simple matter of cutting holes and installing vents. Whether you choose to employ flow through cooling with a gable vent.

Simply secure the vent into place with screws and your vent is complete. They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic. Adding proper venting to your attic can cause dramatic drops in summer cooling costs. But before you cut any holes plan the locations of the attic vents.

Photos 1 6 show how it s done. Soffit vents are commonly made of aluminum or. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent. Determine the attic s square footage.

To install the rafter vents staple them directly to the roof decking. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. Soffit vents are one of the most popular intake vent styles. 1 square foot of intake for every 300 cfm of ventilator.

Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. An attic s intake vents are most commonly installed directly in the soffit either as individual vents spaced every few feet or as one continuous perforated soffit running the entire length of. To install the vents holes will need to be cut into the soffit. They re most effective when used in conjunction with a continuous ridge vent.

A rule of thumb.